Chimney explosion-proof device

Abstract

The utility model relates to a chimney explosion-proof device, and belongs to the technical field of chimney manufacturing. The chimney explosion-proof device comprises a pipeline, wherein a pressure relief opening and a sliding hole are formed in the pipeline; the anti-explosion plate is a Z-shaped bent component composed of a first plate body, a second plate body and a third plate body, the first plate body is located in the pipeline, the second plate body is rotationally connected with the pipeline through a rotating shaft, and the third plate body is located outside the pipeline and is opposite to the pressure relief opening; the balancing weight is connected with the first plate body through a rope, and the rope penetrates through the sliding hole. According to the scheme, opening and closing of the anti-explosion plate can be achieved through the balancing weight, the anti-explosion design that the chimney can be recycled is achieved, and the anti-explosion chimney has the advantages of being simple in structure, convenient and fast.

Description

Technical Field

[0001] The utility model relates to the technical field of chimney manufacturing, in particular to a chimney explosion-proof device. Background Art

[0002] In the related art, currently, for the explosion-proof structure of a chimney, a pressure relief port is opened on the chimney pipe, an explosion-proof plate is installed on the pressure relief port, and a cutting line is provided on the explosion-proof plate. The wall thickness of the cutting line is lower than that of the rest of the area, thus forming an explosion-proof structure. However, this explosion-proof structure can only achieve explosion-proof once. In subsequent maintenance and management, the explosion-proof plate needs to be replaced, which is time-consuming and laborious. Summary of the Utility Model

[0003] To overcome the problems existing in the related art, the utility model provides a chimney explosion-proof device, which can realize the opening and closing of the explosion-proof plate through a counterweight, achieving a recyclable explosion-proof design for the chimney, and having the characteristics of simple structure, convenience and quickness.

[0004] The utility model provides a chimney explosion-proof device in the first aspect, including:

[0005] A pipe, on which a pressure relief port and a sliding hole are provided;

[0006] An explosion-proof plate, which is a Z-shaped bending member composed of a first plate body, a second plate body and a third plate body. The first plate body is located inside the pipe, the second plate body is rotationally connected to the pipe through a rotating shaft, and the third plate body is located outside the pipe and opposite to the pressure relief port;

[0007] A counterweight, which is connected to the first plate body through a rope, and the rope passes through the sliding hole.

[0008] In a possible implementation of the above first aspect, it further includes a pulley and a bracket. The pulley is arranged on the bracket, the bracket is arranged on the outer wall of the pipe, and the second end of the rope winds around the pulley groove and is fixed on the counterweight.

[0009] In a possible implementation of the above first aspect, the rope is a steel wire rope, which is woven by a plurality of stainless steel wires.

[0010] In a possible implementation of the above first aspect, it further includes a chassis, which is arranged on the outer wall of the pipe and below the counterweight. The distance between the chassis and the counterweight is greater than the running stroke of the counterweight.

[0011] In a possible implementation of the above first aspect, an annular sealing gasket surrounding the pressure relief port is further provided on the outer wall of the pipe.

[0012] In a possible implementation of the above first aspect, the first plate body and the third plate body are parallel to each other.

[0013] In a possible implementation of the above first aspect, the end face of the first plate body has a hollow structure.

[0014] The technical solution provided by the present utility model may include the following beneficial effects:

[0015] When applying the technical solution of the present utility model, after deflagration occurs, the high-pressure gas generated, after overcoming the gravity of the counterweight, pushes the third plate body to rotate around the axis of the rotating shaft, opens the pressure relief port, so that part of the high-pressure gas is discharged to the outside through the pressure relief port, quickly reducing the pressure in the chimney pipeline and preventing damage to the structure of the chimney. When the pressure in the chimney returns to normal, the first plate body rotates under the action of the gravity of the counterweight, so that the third plate body can cover the pressure relief port to achieve sealing, ensuring the continuity of production, eliminating the need for maintenance and repair of the chimney pipeline, and having the characteristics of recycling, convenience and quickness. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] By describing the exemplary embodiments of the present utility model in more detail in conjunction with the drawings, the above and other objects, features and advantages of the present utility model will become more obvious. Among them, in the exemplary embodiments of the present utility model, the same reference numerals generally represent the same components.

[0017] Figure 1 is a schematic diagram of the overall structure of the chimney explosion-proof device shown in the embodiment of the present utility model;

[0018] Figure 2 is a closed schematic diagram of the chimney explosion-proof device shown in the embodiment of the present utility model;

[0019] Figure 3 is a cross-sectional view of the chimney explosion-proof device shown in the embodiment of the present utility model;

[0020] Figure 4 is a schematic diagram of the structure of the explosion-proof plate shown in the embodiment of the present utility model. BRIEF DESCRIPTION OF THE DRAWINGS:

[0022] 1. Pipeline; 11. Pressure relief port; 12. Slide hole; 2. Explosion-proof plate; 21. First plate body; 22. Second plate body; 23. Third plate body; 3. Counterweight; 4. Rope; 5. Pulley; 6. Support; 7. Chassis. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0023] The preferred embodiments of the present utility model will be described in more detail below with reference to the accompanying drawings. Although the preferred embodiments of the present utility model are shown in the drawings, it should be understood that the present utility model can be implemented in various forms and should not be limited by the embodiments described herein. On the contrary, these embodiments are provided to make the present utility model more thorough and complete, and to fully convey the scope of the present utility model to those skilled in the art.

[0024] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. These are only for the convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation of the present utility model. In addition, the terms "first", "second", "third" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0025] In the description of the present utility model, it should be noted that unless otherwise clearly specified and defined, the terms "installation", "connection", "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0026] In addition, the technical features involved in different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0027] In the related art, in the current explosion-proof structure of a chimney, a pressure relief port is opened on the chimney pipe, an explosion-proof plate is installed on the pressure relief port, and a circular cutting line is provided on the explosion-proof plate. The wall thickness at the cutting line is lower than the rest of the area to form an explosion-proof structure. However, this explosion-proof structure can only achieve explosion protection once. In subsequent maintenance and management, the explosion-proof plate needs to be replaced, which is time-consuming and laborious.

[0028] To solve the above problems, the present utility model provides a chimney explosion-proof device that can open and close the explosion-proof plate through a counterweight, realizing a recyclable explosion-proof design for the chimney.

[0029] The technical solutions of the embodiments of the present utility model will be described in detail below with reference to the accompanying drawings.

[0030] Figure 1 is a schematic diagram of the overall structure of the chimney explosion-proof device shown in the embodiment of the present utility model;

[0031] Figure 2 This is a closed schematic diagram of a chimney explosion-proof device according to an embodiment of the present invention;

[0032] Figure 3 This is a cross-sectional view of a chimney explosion-proof device according to an embodiment of the present utility model;

[0033] Figure 4 It is a structural schematic diagram of an explosion-proof plate shown in an embodiment of the present utility model.

[0034] See also Figures 1 to 4 , an embodiment of the utility model provides a chimney explosion-proof device, comprising: a pipe 1, wherein the pipe 1 is provided with a pressure relief port 11 and a sliding hole 12;

[0035] The explosion-proof plate 2 is a Z-shaped bent member consisting of a first plate 21, a second plate 22, and a third plate 23. The first plate 21 is located inside the pipe 1, the second plate 22 is rotatably connected to the pipe 1 via a rotating shaft, and the third plate 23 is located outside the pipe 1 and opposite to the pressure relief port 11.

[0036] The counterweight block 3 is connected to the first plate body 21 via a rope 4 , and the rope 4 passes through the sliding hole 12 .

[0037] The pipe 1 has two pipe openings and an outer peripheral surface. The pipes 1 are connected through the pipe openings. A pressure relief port 11 is provided on the outer peripheral surface. When installing the explosion-proof device on the pipe 1, the first plate 21 is first embedded in the pipe 1 along the pressure relief port 11, and then the second plate 22 is rotatably connected to the pipe 1 through a rotating shaft. The installation can be performed in the following manner: corresponding axial holes can be provided on the side walls on the left and right sides of the pressure relief port 11, and corresponding mounting grooves can be provided on the second plate 22. A mounting hole corresponding to the axial hole is provided on the mounting groove. The rotating shaft is inserted into the mounting hole and the axial hole in turn through the mounting groove, and the rotating shaft is fixed to the mounting groove by bolts; a mounting ear can also be provided outside the pipe 1. In this case, the rotating shaft is a bolt. After the bolt passes through the mounting ear, it is bolted to the second plate 22. The head of the bolt is engaged with the mounting ear to realize the rotational connection between the second plate 22 and the pipe 1.

[0038] In this embodiment, when deflagration occurs in the equipment connected to the chimney, after the high-pressure gas generated overcomes the gravity of the counterweight 3, it pushes the third plate body 23 to rotate around the axis of the rotating shaft, opens the pressure relief port 11, and allows part of the high-pressure gas to be discharged to the outside through the pressure relief port 11, quickly reducing the pressure in the chimney pipe 1 and preventing damage to the structure of the chimney. When the pressure in the chimney returns to normal, the first plate body 21 rotates under the action of the gravity of the counterweight 3, enabling the third plate body 23 to cover the pressure relief port 11 and seal the chimney, ensuring the continuity of production, eliminating the need for maintenance and repair of the chimney pipe 1, and having the characteristics of recycling, convenience and speed.

[0039] Furthermore, in order to improve the cooperation stability between the counterweight 3 and the explosion-proof plate 2, avoid the phenomenon of jamming between the counterweight 3 and the first plate body 21, and increase the resistance that the high-pressure gas needs to overcome, on the basis of the above specific implementation manner, the above chimney explosion-proof structure further includes a pulley 5 and a bracket 6. The pulley 5 is arranged on the bracket 6, and the bracket 6 is arranged on the outer wall of the pipe 1. The second end of the rope 4 is wound around the pulley groove of the pulley 5 and then fixed to the counterweight 3. By providing the pulley 5, the resistance during the transmission of the rope 4 can be reduced, ensuring that the resistance that the high-pressure gas needs to overcome is consistent, and avoiding the pressure value of the high-pressure gas exceeding the preset value of the pipe 1 due to an increase in resistance, thereby affecting the explosion-proof performance of the chimney.

[0040] Furthermore, the rope 4 is a steel wire rope, and both ends of the steel wire rope are respectively connected to the first plate body and the counterweight 3 through rope buckles. The steel wire rope is woven by several stainless steel wires. The steel wire rope woven by stainless steel wires has excellent mechanical strength, corrosion resistance and artificial aging performance, which can ensure that the steel wire rope can be used outdoors for a long time.

[0041] Furthermore, in order to prevent the counterweight 3 from falling and smashing the ground due to the breakage of the rope 4, on the basis of the above specific implementation manner, the above chimney explosion-proof structure further includes a chassis 7. The chassis 7 is arranged on the outer wall of the pipe 1 and is located below the counterweight 3. The distance between the chassis 7 and the counterweight 3 is greater than the operating stroke of the counterweight 3.

[0042] On the basis of the above specific implementation manner, in order to improve the sealing effect between the third plate body 23 and the pipe 1, the above chimney explosion-proof structure is also provided with an annular sealing gasket. Specifically, the annular sealing gasket is arranged around the pressure relief port 11. When the third plate body 23 covers the pressure relief port 11, the sealing performance can be improved through the annular sealing gasket, avoiding the leakage of the flue gas in the chimney from the pressure relief port 11 and polluting the environment.

[0043] As Figure 4As shown, based on the above specific implementation manner, the first plate body 21 and the third plate body 23 of the chimney explosion-proof structure are parallel to each other. The first plate body 21 and the third plate body 23 are parallel to each other. When the second plate body 22 rotates, the rotation amplitudes of the first plate body 21 and the third plate body 23 are the same. When the third plate body 23 abuts against the outer peripheral wall of the pipeline 1, the first plate body 21 can also abut against the inner peripheral wall of the pipeline 1, which can reduce the space occupied by the first plate body 21 in the pipeline 1 and can also improve the stability and firmness of the explosion-proof plate 2. The end faces of the first plate body 21 and the third plate body 23 facing the pipeline 1 are arranged in an arc surface structure, which is convenient for the first plate body 21 and the third plate body 23 to fit on the outer peripheral wall or the inner peripheral wall of the pipeline 1 to achieve a sealed connection.

[0044] In practical applications, when an explosion occurs, after the high-pressure gas overcomes the gravity of the counterweight 3 and pushes the explosion-proof plate 2 to rotate, and then opens the pressure relief port 11. In order to reduce the air pressure acting on the first plate body 21 when it expands in the pipeline 1 and avoid the high-pressure air pressure impacting the first plate body 21, based on the above specific implementation manner, a hollow structure is provided on the first plate body 21 to reduce the interference of the first plate body 21 on the high-pressure gas and avoid the risk that the high-pressure gas impacts the first plate body 21 and causes the accidental closing of the pressure relief port 11.

[0045] In this specification, each embodiment is described in a progressive manner. The key point of each embodiment is to illustrate the differences from other embodiments. The same or similar parts among the embodiments can be referred to each other.

[0046] The above has described the embodiments of the present invention. The above description is exemplary, not exhaustive, and is not limited to the disclosed embodiments. Without departing from the scope and spirit of the described embodiments, many modifications and changes are obvious to those of ordinary skill in the art. The selection of the terms used herein is intended to best explain the principles of the embodiments, the practical application, or the improvement of the technology in the market, or to enable other ordinary technicians in the technical field to understand the embodiments disclosed herein.

Claims

1. A chimney explosion-proof device, characterized in that: include: A pipeline, wherein the pipeline is provided with a pressure relief port and a sliding hole; an explosion-proof plate, the explosion-proof plate being a Z-shaped bent member consisting of a first plate, a second plate, and a third plate, wherein the first plate is located inside the pipe, the second plate is rotatably connected to the pipe via a rotating shaft, and the third plate is located outside the pipe and opposite the pressure relief port; A counterweight block is connected to the first plate body via a rope, and the rope passes through the sliding hole.

2. The chimney explosion-proof device according to claim 1, characterized in that: It also includes a pulley and a bracket, the pulley is arranged on the bracket, and the bracket is arranged on the outer wall of the pipeline. The second end of the rope is wound around the wheel groove of the pulley and then fixed on the counterweight block.

3. The chimney explosion-proof device according to claim 2, characterized in that: The rope is a steel wire rope, which is braided from a number of stainless steel wires.

4. The chimney explosion-proof device according to claim 3, characterized in that: It also includes a chassis, which is arranged on the outer wall of the pipeline and is located below the counterweight block. The distance between the chassis and the counterweight block is greater than the operating stroke of the counterweight block.

5. The chimney explosion-proof device according to claim 1, characterized in that: An annular sealing gasket surrounding the pressure relief port is also provided on the outer wall of the pipeline.

6. The chimney explosion-proof device according to claim 5, characterized in that: The first plate and the third plate are parallel to each other.

7. The chimney explosion-proof device according to any one of claims 1 to 6, characterized in that: The end surface of the first plate body has a hollow structure.

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